A link to all 7 of the major parties >>> Ranked share of the vote in the UK General Election 2015
Thank you to @AndyJSajs for collating the information
Castle Point (82.05%)
South Holland & The Deepings (81.37%)
Clacton (81.09%)
Christchurch (79.57%)
Boston & Skegness (77.59%)
Cambridgeshire North East (77.59%)
Beaconsfield (76.99%)
Rayleigh & Wickford (76.94%)
New Forest West (76.43%)
Staffordshire South (76.10%)
Meon Valley (75.88%)
Broxbourne (75.77%)
Brentwood & Ongar (75.65%)
Maldon (75.25%)
Arundel & South Downs (75.23%)